A 43-year-old woman with LAM and recurrent pneumothoraces. A, CT scan of the lungs shows no evidence of pneumothorax. On the same day as the imaging study, the patient had a cardiopulmonary exercise test. Subsequently, she reported right chest pain. B, CT scan demonstrating the presence of a right-sided pneumothorax (asterisk). She underwent a right-sided, video-assisted talc pleurodesis that resulted in complete resolution of the pneumothorax.